Books by Va.) General Conference on Social Graphics (1st : 1978 : Leesburg:
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General Conference on Social Graphics (1st : 1978 : Leesburg, Va.): Proceedings of the First General Conference on Social Graphics, Leesburg, Virginia, October 22-24, 1978 : papers (U.S. Dept. of Commerce, Bureau of the Census :, 1980), also by Vincent P. Barabba and United States Bureau of the Census (page images at HathiTrust)
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